of chicago



W. BARTHOLOMEW.

CENTRIFUGAL ExTRAcToR MEcHANrsM.

APPLCATION FILED IVUNE 25,1917.

Patented June 29, 1920.

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UNITED sTArasf- `iwfravi g OFFICE.

WILLIAM BARTHOLQMEW, or CHICAGO, ILLINors'AssIGNoB. To TROY LAUNDmrVv IMIACI-IIlNl'EIELYk CO. LTD., OF CHICAGO, ILLINOIS, .A CORPORATION OF'NEW YORK.

i cEN'rRIFueAL-EXTRACTOR'MECHANISM.

To all whom t may concern: Be it known that'I, WILLIAM BARTHoLo- MEW, a citizen of the United States, and resident of Chicago, in the county of'Coolr and State of Illinois, have invented certain new and useful Improvements in Centrifugal-Extractor Mechanism, of which the following is a specification. f

This invention relates to centrifugal eX- tractors, and more particularly 1to1' spindle bearing mechanism therefor.

One of the objectsy of the inventionisto maintain a relatively lowbearing temperature. 4 l j Another obj ect is t0 absorb gyratory motion of the spindle in a novel manner.

Another object of the invention is to provide spindle kbearing mechanismffor centrifugal eXtract'ors adapted toy meetfthe requirements for successful commercial op-r eration. Y f

These and Vother objects are accomplished by providing `in a centrifugal extractor thev combination of aspindle, a bearingbushing therefor having a laterally extending flange,v

and bearing members operatively connected with the flange to take up gyratory motion and'b'eing spaced from the bearing bushing Vto maintain a low bearing temperature. f 30 The invention isv illustrated on'the accompanying sheet of drawings inwhich,

Figure 1 is a side elevation, parts being in section of a centrifugal extractoremb'odying my invention Fig. 2 is an enlarged detail sectional view of the spindle bearing mechanism;

Fig. 3 is a sectional .view taken in the` plane of line 3-3 of Fig. 2;

Fig. 4- is an enlarged sectional view ofL spindle bearing mechanism whichis a modiv ication of the arrangement shown 1n Fig.

2, and,

Fig. 5 is a detail sectional view of a spindle bearing showing modified means for ad-` justing the spindle in the bushing.

The various .novel features of my invention will be apparenty from the followingdeing a perforated basket 11 secured to theupper end of a spindle 12,the lower end of which is mounted within a recessed portion 13 formed in the base 14 of the curb. The

115, thereby providing `means whereby integrally. formed laterally lextending annular liange v19,`the upper and lower sides of which converge. outwardly and engage cooperatingbearing surfaces of bearing members 20. Each `ofthe bearing members 20 Specification of Letters lfatent. Patented June 29,11920 Application md June 25, 1917. l seriai'No. 176,772.

which is in the form of a ring or annular pieceofmaterial, such asrubber vor similar material, has a mating bearing member 21 which is spaced'from its cooperating bearing member 2O bythe laterally extending annular ange 22 of a metal ring 23. Thesey metal rings, two in number, located between each pairof bearing members above and below the kbushing flange 19,v vhave an inside diameter sufficiently larger than the outside diameter rof the bearing bushing 15 to permit gyratory motion of aconsiderable degree. At the same time the metal rings'23 prevent the; bearing members 2O and 21 coming in contact with lthe bearing bushing currents `of Iair may-be circulated between the bearingbushing 15 and bearing members 20 and 21 andthe rlngfsupportingv member 23 to maintain a relatively low bearing temperature. :The bearing temperature also is maintained relatively low, dueto the fact that` eight'bearing surfaces are provided,

said b earingfsurfacesbeing between the bearing members 20 and 21 and the interf posed metal rings 23, between the intermediate bearing members 20 andthe bushing f ange 19xand between the outer bearing members 21 and the washers or spacing members 24 and 25. They spacing member 24 rests on an annular shoulder 26 formed on the base of the curb and the spacer 25 rests upony the upper bearing member 21 and is pressed into engagement therewith by lock nut 27. rI`he pressure exerted upon the bearing members may be regulated by adjusting the ylock nut 27 with respect to the base of the curb.

Bymeans of this arrangement it is apparent that any gyratory motion of the spindle will be taken up by the eight sur- ,faces which materially aid in maintaining a low bearing temperature. A further advantage, in this arrangement, Where rubber or similar material is used for the bearing members, is that sufficient space is provided to alloiv this material, Which is not comypressible, to change its form but maintain its volume under pressure.

vIn F ig. 4 I have disclosed a combination which has a spindle bearing arrangement Which is similar to the one disclosed in Figs. 1 and 2, with the exception, however, that the spindle 30 is tapered at its lower end and the bearing bushing 31 is correspondingly tapered. The lower end of the spindle 30 is provided With any suitable stepA bearing 32 which rests upon a bushing step 33 which is adjustable withrespect to the busliing .31 to take` up Wear.

In Fig. 5 I have shown a further modification in which the spindle 34 may be ad'- j usted in accordance with the Wear by means of shims 35 placed beneath the step 36 and retained by the closed end of the bearing bushing 37. 25

Vintention to Coverall such modifications 1 ing bushing.

2. In a. centrifugal extractonthe combination ofy a spindle having a tapered portion, a bearing bushing having a taperedY Yportion for directly receiving the spindle and having a laterally extending ange, bearing members operatively connected with the flange which permit and also take 'up gyratory motion, and means for spacing said bearing members from said bushing and maintaining the Aspaced relationship for maintaining low bearing temperature.

3. In a centrifugal extractor, the combination of a spindle, a bearing bushing therefor having a laterally extending flange, and a set of bearing members on each side of said flange Which permit and also take up gyratory` motion, each of said sets including a` plurality of members, and means for spacing said members from the bearing bushing.

4l. In a centrifugal extractor, the combination of a spindle7 a bearing bushing therefor having a laterally extending flange, and a set of bearing members on each side of said flange which permit and also take up gyratory motion, each of said sets including a plurality of mem-bers, and. means for spacing said members from eachother and from said bearing bushing.

5. In a centrifugal extractor, the combination of a spindle, a bearing bushing therefor having a laterally extending flange, and bearingmeans on each side of said flange, one of said bearing means including a plurality of members andA a retaining member for preventing engagement between said members and the bearing bushing.

6. In a centrifugal extractor, the combination of a Spindle, a: bearing bushing therefor having a laterally extending flange, and bea ring means ony each side of said flange for taking up gyratory motion, said means including annular members, and a ring hava fla-nge for separating said annular members and being spaced from the bearing bushing to permit circulation of air therebetween. y

Signed at Chicago, Illinois, this 20th day of June, 1917.

WILLIAM BARTI-IQLOMEW. Y V-Vitnesses:

J. F. BnUs'rLn, S. I'I. DEKKER. 

